Patents by Inventor Suguru Fukui
Suguru Fukui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10767524Abstract: A cylinder head cover structure of an engine includes a positive crankcase ventilation (PCV) valve releasing blow-by gas from an oil separating chamber to an intake system of the engine. The oil separating chamber is included in an oil separator provided to an interior of a cylinder head cover. In the oil separating chamber, oil mist is separated and removed from the blow-by gas. The PCV valve is located between a portion of a defining wall and an exterior wall of the cylinder head cover, and supported by the defining wall and the exterior wall, the defining wall defining the oil separating chamber and the cam housing, and the exterior wall being spaced apart from the portion of the defining wall. The PCV valve is surrounded by a space communicating with the cam housing.Type: GrantFiled: July 10, 2018Date of Patent: September 8, 2020Assignee: Mazda Motor CorporationInventors: Takashi Kashiwabara, Satoshi Nozawa, Suguru Fukui
-
Patent number: 10731601Abstract: A cylinder head cover structure for an engine includes a cylinder head cover. The cylinder head cover includes a metal cover member forming one end of the cylinder head cover in an engine length direction and a portion adjacent to the one end, and a resin cover member forming a portion of the cylinder head cover other than the metal cover member. The metal cover member is provided with a cam angle sensor attachment to which a cam angle sensor is attached, the cam angle sensor detecting a rotational position of a camshaft of the engine.Type: GrantFiled: July 10, 2018Date of Patent: August 4, 2020Assignee: Mazda Motor CorporationInventors: Takashi Kashiwabara, Suguru Fukui
-
Publication number: 20190017466Abstract: A cylinder head cover structure for an engine includes a cylinder head cover. The cylinder head cover includes a metal cover member forming one end of the cylinder head cover in an engine length direction and a portion adjacent to the one end, and a resin cover member forming a portion of the cylinder head cover other than the metal cover member. The metal cover member is provided with a cam angle sensor attachment to which a cam angle sensor is attached, the cam angle sensor detecting a rotational position of a camshaft of the engine.Type: ApplicationFiled: July 10, 2018Publication date: January 17, 2019Inventors: Takashi Kashiwabara, Suguru Fukui
-
Publication number: 20190017420Abstract: A cylinder head cover structure of an engine includes a positive crankcase ventilation (PCV) valve releasing blow-by gas from an oil separating chamber to an intake system of the engine. The oil separating chamber is included in an oil separator provided to an interior of a cylinder head cover. In the oil separating chamber, oil mist is separated and removed from the blow-by gas. The PCV valve is located between a portion of a defining wall and an exterior wall of the cylinder head cover, and supported by the defining wall and the exterior wall, the defining wall defining the oil separating chamber and the cam housing, and the exterior wall being spaced apart from the portion of the defining wall. The PCV valve is surrounded by a space communicating with the cam housing.Type: ApplicationFiled: July 10, 2018Publication date: January 17, 2019Inventors: Takashi Kashiwabara, Satoshi Nozawa, Suguru Fukui
-
Patent number: 9212951Abstract: The object detection device includes: a pyroelectric element configured to output a current signal in response to a change in an amount of infrared light; an I/V conversion circuit including an operational amplifier, a capacitive element serving as a feedback circuit, and a discharging circuit, and configured to convert the current signal to a voltage signal; an A/D conversion circuit configured to convert the voltage signal to a first digital signal; a digital filter configured to extract a detection component having a frequency included in a frequency band associated with an object from a waveform represented by the first digital signal by subjecting the first digital signal to an arithmetic processing, and create a second digital signal representing a waveform of the detection component; a judgment circuit configured to detect the target based on the second digital signal; and a control unit configured to control the discharging circuit based on a period corresponding to a predetermined frequency not greatType: GrantFiled: June 30, 2011Date of Patent: December 15, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Suguru Fukui, Teruki Hatatani
-
Patent number: 9052354Abstract: A magnetic field sensor includes: a magnetic thin film; a feeder comprising an input and output terminals configured to supply element current to the magnetic thin film; and a detector configured to detect a voltage between ends of the magnetic thin film in a direction perpendicular to a direction of the element current. The magnetic thin film is Rained symmetric about the direction of the element current.Type: GrantFiled: August 26, 2010Date of Patent: June 9, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hideki Takenaga, Eiji Iwami, Tomoyuki Sawada, Hiroaki Tsujimoto, Keisuke Yoshikawa, Suguru Fukui
-
Patent number: 8552355Abstract: A current-voltage converting circuit (2) is provided with a first feedback circuit (5) and a correcting transistor (Q1). The first feedback circuit (5) outputs, of an output voltage (V10), a voltage according to a magnitude of a low-frequency component that is not greater than or equal to a predefined first cut-off frequency. The correcting transistor (Q1) extracts a correction current (I21) according to a magnitude of an output of the first feedback circuit (5) from a sensor current (I10). The first feedback circuit (5) has a first integrating circuit (9) and a sample-and-hold circuit (10). The first integrating circuit (9) integrates the output voltage (V10) of a conversion section (3). The sample-and-hold circuit (10) samples and holds an output of the first integrating circuit (9) during a sensing period at which a pulsed detection signal is inputted. Means for preventing an incidence of ambient light onto a light-receiving section can be simplified or omitted as a result.Type: GrantFiled: April 21, 2009Date of Patent: October 8, 2013Assignee: Panasonic CorporationInventors: Suguru Fukui, Teruki Hatatani
-
Patent number: 8487258Abstract: The pyroelectric infrared detection element has a pyroelectric element including opposite first and second electrodes and an infrared absorption part. The first and second electrodes are formed on first and second thickness-direction surfaces of a pyroelectric substrate respectively. The detection element includes an output terminal unit including first and second output terminals on the substrate, and first and second wiring parts connecting the first and second output terminals to the first and second electrodes respectively. The first wiring part includes a connecting line being a conductive layer on the first surface to connect the first output terminal to the first electrode, and a canceling line for canceling charges generated at the connecting line in response to a change in temperature of the substrate. The canceling line is a conductive layer on the second surface to be insulated from the second electrode and to be connected to the connecting line.Type: GrantFiled: June 23, 2011Date of Patent: July 16, 2013Assignee: Panasonic CorporationInventors: Takahiro Sono, Teruki Hatatani, Suguru Fukui, Takayuki Nishikawa
-
Patent number: 8480777Abstract: An extension piece portion is provided at a lower end portion of a screen plate so as to extend from the lower end portion, beyond a gas-passing through hole, to an oil pocket portion. An oil guide portion is provided at respective gas-hitting-side face portions of the screen plate and the extension piece portion so as to guide oil trapped at the above-described face portions into the oil pocket portion. Accordingly, it can be prevented that part of the oil in the middle of dropping down into the oil pocket portion from the screen plate is carried away by the gas flow passing through the gas-passing through hole, so that the efficiency of oil trap can be improved.Type: GrantFiled: June 16, 2011Date of Patent: July 9, 2013Assignee: Mazda Motor CorporationInventors: Takahiro Sakaguchi, Shigemi Okada, Tokio Kagawa, Jun Yamane, Naoki Suizu, Suguru Fukui, Toshinobu Mori, Yusuke Nakata, Takashi Fukui
-
Publication number: 20130082179Abstract: The object detection device includes: a pyroelectric element configured to output a current signal in response to a change in an amount of infrared light; an I/V conversion circuit including an operational amplifier, a capacitive element serving as a feedback circuit, and a discharging circuit, and configured to convert the current signal to a voltage signal; an A/D conversion circuit configured to convert the voltage signal to a first digital signal; a digital filter configured to extract a detection component having a frequency included in a frequency band associated with an object from a waveform represented by the first digital signal by subjecting the first digital signal to an arithmetic processing, and create a second digital signal representing a waveform of the detection component; a judgment circuit configured to detect the target based on the second digital signal; and a control unit configured to control the discharging circuit based on a period corresponding to a predetermined frequency not greatType: ApplicationFiled: June 30, 2011Publication date: April 4, 2013Applicant: PANASONIC CORPORATIONInventors: Suguru Fukui, Teruki Hatatani
-
Publication number: 20120318980Abstract: The pyroelectric infrared detection element has a pyroelectric element including opposite first and second electrodes and an infrared absorption part. The first and second electrodes are formed on first and second thickness-direction surfaces of a pyroelectric substrate respectively. The detection element includes an output terminal unit including first and second output terminals on the substrate, and first and second wiring parts connecting the first and second output terminals to the first and second electrodes respectively. The first wiring part includes a connecting line being a conductive layer on the first surface to connect the first output terminal to the first electrode, and a canceling line for canceling charges generated at the connecting line in response to a change in temperature of the substrate. The canceling line is a conductive layer on the second surface to be insulated from the second electrode and to be connected to the connecting line.Type: ApplicationFiled: June 23, 2011Publication date: December 20, 2012Applicant: PANASONIC CORPORATIONInventors: Takahiro Sono, Teruki Hatatani, Suguru Fukui, Takayuki Nishikawa
-
Publication number: 20120229131Abstract: A magnetic field sensor includes: a magnetic thin film; a feeder comprising an input and output terminals configured to supply element current to the magnetic thin film; and a detector configured to detect a voltage between ends of the magnetic thin film in a direction perpendicular to a direction of the element current. The magnetic thin film is Rained symmetric about the direction of the element current.Type: ApplicationFiled: August 26, 2010Publication date: September 13, 2012Applicant: PANASONIC CORPORATIONInventors: Hideki Takenaga, Eiji Iwami, Tomoyuki Sawada, Hiroaki Tsujimoto, Keisuke Yoshikawa, Suguru Fukui
-
Publication number: 20110314779Abstract: An extension piece portion is provided at a lower end portion of a screen plate so as to extend from the lower end portion, beyond a gas-passing through hole, to an oil pocket portion. An oil guide portion is provided at respective gas-hitting-side face portions of the screen plate and the extension piece portion so as to guide oil trapped at the above-described face portions into the oil pocket portion. Accordingly, it can be prevented that part of the oil in the middle of dropping down into the oil pocket portion from the screen plate is carried away by the gas flow passing through the gas-passing through hole, so that the efficiency of oil trap can be improved.Type: ApplicationFiled: June 16, 2011Publication date: December 29, 2011Applicant: MAZDA MOTOR CORPORATIONInventors: Takahiro SAKAGUCHI, Shigemi OKADA, Tokio KAGAWA, Jun YAMANE, Naoki SUIZU, Suguru FUKUI, Toshinobu MORI, Yusuke NAKATA, Takashi FUKUI
-
Publication number: 20110031419Abstract: A current-voltage converting circuit (2) is provided with a first feedback circuit (5) and a correcting transistor (Q1). The first feedback circuit (5) outputs, of an output voltage (V10), a voltage according to a magnitude of a low-frequency component that is not greater than or equal to a predefined first cut-off frequency. The correcting transistor (Q1) extracts a correction current (I21) according to a magnitude of an output of the first feedback circuit (5) from a sensor current (I10). The first feedback circuit (5) has a first integrating circuit (9) and a sample-and-hold circuit (10). The first integrating circuit (9) integrates the output voltage (V10) of a conversion section (3). The sample-and-hold circuit (10) samples and holds an output of the first integrating circuit (9) during a sensing period at which a pulsed detection signal is inputted. Means for preventing an incidence of ambient light onto a light-receiving section can be simplified or omitted as a result.Type: ApplicationFiled: April 21, 2009Publication date: February 10, 2011Inventors: Suguru Fukui, Teruki Hatatani
-
Patent number: 7792553Abstract: A wireless sensor device including a sensor configured to sense a target object and provide a sensor signal of varying levels indicative of condition of the target object, a signal processing circuit configured to amplify the sensor signal and provide an amplified electric analog signal, and a detection circuit configured to receive the amplified analog signal and provide a detection output when the electric analog signal goes beyond a predetermined detection threshold. A radio transmitter transmits a radio detection signal in response to the detection output. A power supply is configured to provide an electric power to the signal processing circuit and the radio transmitter and includes a power generating element which converts an external energy into the electric power to be accumulated in the power supply. A controller activates the radio transmitter only in response to the detection output, permitting the radio transmitter to generate the radio detection signal.Type: GrantFiled: November 18, 2005Date of Patent: September 7, 2010Assignee: Panasonic Electric Works Co., Ltd.Inventors: Suguru Fukui, Teruki Hatatani, Yuji Takada
-
Patent number: 7312450Abstract: An infrared detecting device for reducing current consumption while maintaining performance is disclosed. The device includes a drive power supply circuit which comprises a current generating circuit and a distribution circuit, and which supplies a drive current to each of signal circuits comprising an I/V conversion circuit, a voltage amplification circuit, a detection circuit and an output circuit. The current generating circuit includes a reference current source, a fixed current source providing a fixed current based on the reference current and a variable current source providing a variable current stepped up or down to any different currents based on the reference current. The distribution circuit distributes the drive current to a part of the signal circuits based on the current from the fixed current source and distributes the drive current to a remaining part of the signal circuits based on the current from the variable current source.Type: GrantFiled: November 11, 2004Date of Patent: December 25, 2007Assignee: Matsushita Electric Works, Ltd.Inventors: Suguru Fukui, Teruki Hatatani, Yuji Takada, Atsushi Hironaka
-
Publication number: 20070159235Abstract: A wireless sensor device of low energy consumption operates over a prolonged period of time for providing a reliable sensor result. The wireless sensor device includes a sensor configured to sense a target object and provide a sensor signal of varying levels indicative of condition of the target object, a signal processing circuit configured to amplify the sensor signal and give an amplified electric analog signal, and a detection circuit configured to receive the amplified analog signal and provide a detection output when the electric analog signal goes beyond a predetermined detection threshold. Also included in the device is a radio transmitter which transmits a radio detection signal in response to the detection output. Further, the device includes a power supply configured to provide an electric power to the signal processing circuit and the radio transmitter; and a power generating element which converts an external energy into the electric power to be accumulated in the power supply.Type: ApplicationFiled: November 18, 2005Publication date: July 12, 2007Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Suguru Fukui, Teruki Hatatani, Yuji Takada
-
Patent number: 7129487Abstract: An infrared detecting circuit is provided with a current-to-voltage converting circuit including a capacitor connected with an inverting input terminal and an output terminal of an operational amplifier and a resistance circuit element connected in parallel with the capacitor, an inverting amplifying circuit connected with an output side of the current-to-voltage converting circuit, a band-pass filter circuit connected with an output side of the voltage amplifying circuit, and an output circuit connected with an output side of the band-pass filter circuit. The infrared detecting circuit and an infrared detector including this circuit can be miniaturized.Type: GrantFiled: November 27, 2002Date of Patent: October 31, 2006Assignee: Matsushita Electric Works, Ltd.Inventors: Teruki Hatatani, Suguru Fukui, Yuji Takada
-
Publication number: 20050285040Abstract: An infrared detecting device. The device includes a drive power supply circuit which supplies a drive current to each of signal circuits comprised of an I/V conversion circuit, a voltage amplification circuit, a detection circuit and an output circuit. The drive power supply circuit is comprised of a current generating circuit and a distribution circuit. The current generating circuit includes a reference current source, a fixed current source which provides a fixed current based on reference current and a variable current source which provides a variable current stepped up or down to any of different currents based on the reference current. The distribution circuit distributes the drive current to a part of the signal circuits based on the current from the fixed current source and distributes the drive current to a remaining part of the signal circuits based on the current from the variable current source.Type: ApplicationFiled: November 11, 2004Publication date: December 29, 2005Inventors: Suguru Fukui, Teruki Hatatani, Yuji Takada, Atsushi Hironaka
-
Publication number: 20040149910Abstract: An infrared detecting circuit is provided with a current-to-voltage converting circuit including a capacitor connected with an inverting input terminal and an output terminal of an operational amplifier and a resistance circuit element connected in parallel with the capacitor, an inverting amplifying circuit connected with an output side of the current-to-voltage converting circuit, a band-pass filter circuit connected with an output side of the voltage amplifying circuit, and an output circuit connected with an output side of the band-pass filter circuit. The infrared detecting circuit and an infrared detector including this circuit can be miniaturized.Type: ApplicationFiled: April 8, 2004Publication date: August 5, 2004Inventors: Teruki Hatatani, Suguru Fukui